It may be that our role on this planet is not to worship God - but to create him.

All explorers are seeking something they have lost. It is seldom that they find it, and more seldom still that the attainment brings them greater happiness than the quest.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

In my life I have found two things of priceless worth - learning and loving. Nothing else - not fame, not power, not achievement for its own sake - can possible have the same lasting value. For when your life is over, if you can say 'I have learned' and 'I have loved,' you will also be able to say 'I have been happy.

Guns are the crutches of the impotent.

I sometimes think that the universe is a machine designed for the perpetual astonishment of astronomers.

Religion is a byproduct of fear.